Energy-saving two-position three-way ball valve capable of being quickly opened

Abstract

The application provides a fast-opening energy-saving two-position three-way ball valve, which aims to solve the problem of high energy consumption of electromagnetic drive. The ball valve comprises a three-way ball valve, the three-way ball valve comprises a valve body, the valve body comprises a water inlet, a first water outlet and a second water outlet, and the drive device comprises a drive bin, the drive bin is provided with a liquid inlet pipe, the liquid inlet pipe is communicated with a first reversing pipe and a second reversing pipe through a three-way pipe, a reversing shell is arranged between the first reversing pipe and the second reversing pipe, an impeller is rotatably connected to the reversing shell through a rotating shaft, the three-way pipe comprises a main pipe, the main pipe is communicated with an upper branch pipe and a lower branch pipe, a sealing plate is hingedly connected to the intersection of the upper branch pipe and the lower branch pipe, the sealing plate closes the lower branch pipe under the action of gravity, and an electromagnet is fixed above the three-way pipe, the electromagnet makes the sealing plate close the upper branch pipe. The application utilizes the pressure difference of water flow to drive the impeller to rotate, thereby realizing the fast opening of the valve, significantly reducing the demand for continuous power supply of the traditional electromagnet, and greatly reducing the energy consumption.

Description

Technical Field

[0001] This invention relates to the field of valves, and in particular to an energy-saving two-position three-way ball valve that can be opened quickly. Background Technology

[0002] In traditional fluid control systems, three-way ball valves are widely used as key components in various industrial, commercial, and civil fields for fluid distribution, switching, and regulation. However, existing three-way ball valves have many shortcomings in their design and use. Traditional three-way ball valves typically use electromagnets as the main driving force source, controlling the rotation of the ball through the electromagnet's attraction and release to achieve fluid switching. However, this design has significant energy consumption issues. When the water pressure is too high, the force driving the ball to rotate also increases accordingly, leading to increased energy consumption of the electromagnet. Furthermore, the electromagnet requires continuous power to maintain its working state. Even when fluid switching is not required, a certain amount of electrical energy is consumed to maintain the electromagnet's attraction force. This not only increases the system's energy consumption but may also cause the electromagnet to overheat or even be damaged due to prolonged operation, thus affecting the valve's stability and service life. Summary of the Invention

[0003] This invention proposes an energy-saving two-position three-way ball valve that can be opened quickly, solving the problem of high energy consumption in existing electromagnetic drives.

[0004] The technical solution of this invention is implemented as follows: A quick-opening, energy-saving two-position three-way ball valve includes a three-way ball valve body. The valve body includes an inlet, a first outlet, and a second outlet. A T-shaped ball rotates within the valve body, and a valve stem is fixed to the ball. The valve stem is driven by a drive device, which includes a drive chamber. An inlet pipe passes through the drive chamber and is connected to a first reversing pipe and a second reversing pipe via a three-way pipe. The first reversing pipe is connected to the first outlet, and the second reversing pipe is connected to the second outlet. A reversing housing is provided between the second reversing pipes. An impeller is rotatably connected inside the reversing housing via a rotating shaft. The axes of the first and second reversing pipes are both connected to and tangent to the reversing housing. The tee pipe includes a main pipe, with an upper branch pipe and a lower branch pipe connected to the main pipe. A sealing plate is hinged at the intersection of the upper and lower branch pipes. The sealing plate closes the lower branch pipe under the action of gravity. An electromagnet is fixed above the tee pipe. The electromagnet can attract the sealing plate to rotate and close the upper branch pipe. One end of the rotating shaft, located outside the reversing housing, is fixedly connected to the valve stem.

[0005] Furthermore, a limit plate is screwed to the side wall of the reversing housing, and a limit rod is fixed on the reversing housing. The limit rod passes through the limit plate, and a limit ring is fixed to the top of the limit rod. The rotating shaft rotates within the limit ring. The limit plate can prevent the valve from being over-rotated due to misoperation, helping to avoid potential problems such as fluid leakage, system pressure imbalance, or equipment damage.

[0006] Furthermore, a spur gear is fixed to the top of the rotating shaft, and a V-shaped reversing plate is rotatably connected to the limiting ring via the rotating shaft. Two mirror-image limiting teeth are fixed to both ends of the reversing plate. The limiting teeth have an inclined surface on one side near the rotating shaft and a limiting surface on the other side. The inclined surface is tangent to the spur gear, and the limiting surface abuts against the teeth of the spur gear. Two parallel V-shaped limiting grooves are formed at the end of the reversing plate away from the opening. A support plate is provided on the limiting ring, and a spring telescopic shaft is fixed to one end of the support plate. The telescopic end of the spring telescopic shaft can be placed at the small end of the limiting groove. When the spring telescopic rod is placed in the limiting groove, one of the limiting teeth inserts into the spur gear. The reversing plate is driven by the reversing device. Through the cooperation of the reversing plate, the spur gear, and the spring telescopic rod, not only is the operating accuracy and stability of the three-way ball valve improved, but the safety and reliability of the system are also enhanced, while maintenance costs are reduced and service life is extended.

[0007] Furthermore, a connecting plate is fixed to the top of the rotating shaft, and the reversing device includes a bracket on which a reversing motor is fixed. The output shaft of the reversing motor is connected to a lever via a connecting rod, and the side wall of the lever abuts against the connecting plate. The reversing motor can easily realize the reversing of the valve, reduce manual intervention, and improve production efficiency and ease of operation.

[0008] Furthermore, a counterweight is fixed to the end of the sealing plate away from the hinge. The counterweight is a permanent magnet that can be attracted by an electromagnet. The counterweight enhances the sealing performance and facilitates electromagnet attraction, simplifying valve design and eliminating the need for additional mechanical parts or complex mechanisms to achieve stable positioning and rapid reversal of the sealing plate.

[0009] Furthermore, the rotating shaft is connected to a drive shaft via a gear set. The bottom end of the drive shaft passes through the drive chamber, and a connecting nut is rotatably connected to the end of the drive shaft outside the drive chamber. The connecting nut is rotatably connected to the top end of the valve stem. The bottom end of the drive shaft has a protrusion, and the valve stem has a groove to accommodate the protrusion. The interlocking structure of the protrusion and the groove not only prevents relative rotation but also enhances the connection strength between the drive shaft and the valve stem, enabling the valve to maintain stable operation even when subjected to high fluid pressure.

[0010] Furthermore, the ball is rotatably connected to the valve body via a sealing ring. The sealing ring contains an elastic gasket, and a limiting pin is located at one end of the sealing ring. The valve body has a pin hole that mates with the limiting pin. Since the sealing ring and the elastic gasket are integrally formed and connected to the valve body via the limiting pin, when the sealing ring needs to be replaced, it can be easily disassembled as a whole and replaced with a new sealing ring assembly, simplifying the maintenance process.

[0011] Furthermore, a sealed chamber is fixed inside the drive chamber, and the electromagnet is housed within the sealed chamber. A drain valve is provided at the bottom of the drive chamber. The presence of the sealed chamber keeps the electromagnet and other electrical components in a relatively enclosed environment, reducing the impact of external interference on the electromagnet's operation and improving the stability of the equipment.

[0012] Furthermore, the inlet pipe, the first reversing pipe, and the second reversing pipe, which are located outside the drive chamber, are made of transparent material. By observing the fluid flow in real time, operators can adjust the valve opening or reverse the fluid flow according to changes in flow rate and direction, thereby achieving more precise fluid control.

[0013] The beneficial effects of this technical solution are: This invention utilizes the pressure difference of water flow to drive the impeller, thereby achieving rapid valve opening. It significantly reduces the need for continuous power supply to traditional electromagnets, greatly lowering energy consumption. Furthermore, using the fluid pressure difference as the driving force reduces wear and tear on mechanical components and the risk of failure, improving valve stability and lifespan. Simultaneously, the electromagnet operates only when necessary, reducing the possibility of overheating or damage due to prolonged operation. When the ball rotates a certain angle, the fluid flowing through it increases, correspondingly reducing the pressure difference. This reduces the thrust on the impeller until the pressure difference decreases to the point where it can no longer drive the impeller, reaching a state of equilibrium. At this point, the valve switches. This adaptive mechanism achieves precise valve positioning and control without the need for a complex control system. The design of the reversing plate and limiting teeth ensures that the spur gear and the connected shaft and ball can only rotate in a predetermined direction, improving the accuracy and safety of fluid control. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2This is an exploded view of the valve body. Figure 3 A top-down view of a partial three-dimensional structure inside the drive compartment; Figure 4 A partial three-dimensional structural diagram of the drive bay viewed from below; Figure 5 This is a partial sectional view of the drive compartment; Figure 6 for Figure 5 A magnified view of a portion of point A in the middle; Figure 7 This is a sectional view of the valve body; Figure 8 for Figure 7 A magnified view of a portion of point B in the middle; Figure 9 This is a schematic diagram of the internal structure of the reversing housing; Figure 10 This is a side view of the reversing housing; Figure 11 This is a three-dimensional structural diagram of the reversing housing. Figure 12 This is a partial top view of the reversing plate. Figure 13 This is a schematic diagram of a partial three-dimensional structure at the commutator plate.

[0016] The components are as follows: 1. Valve body; 2. Inlet; 3. First outlet; 4. Second outlet; 5. Ball; 6. Limiting plate; 7. Drive chamber; 8. Inlet pipe; 9. T-connector; 10. First reversing pipe; 11. Second reversing pipe; 12. Reversing housing; 13. Shaft; 14. Impeller; 15. Upper branch pipe; 16. Lower branch pipe; 17. Sealing plate; 18. Electromagnet; 19. Limiting rod; 20. Limiting ring. 21. Spur gear, 22. Reversing plate, 23. Limiting tooth, 24. Limiting surface, 25. Inclined surface, 26. Limiting groove, 27. Spring telescopic shaft, 28. Connecting plate, 29. Reversing motor, 30. Actuating rod, 31. Counterweight, 32. Drive shaft, 33. Connecting nut, 34. Groove, 35. Sealing ring, 36. Elastic gasket, 37. Limiting pin, 38. Sealing chamber, 39. Drain valve. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] In the description of this embodiment, it should be understood that the terms "center," "longitudinal," "lateral," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the invention.

[0019] like Figure 1-7 As shown, this invention provides a quick-opening, energy-saving two-position three-way ball valve, comprising a three-way ball valve body 1, which includes an inlet 2, a first outlet 3, and a second outlet 4. A T-shaped ball 5 rotates within the valve body 1, and a valve stem is fixed to the ball 5. The valve stem is driven by a driving device, which includes a driving chamber 7. An inlet pipe 8 passes through the driving chamber 7. The inlet pipe 8 is connected to a first reversing pipe 10 and a second reversing pipe 11 via a three-way pipe 9. The first reversing pipe 10 is connected to the first outlet 3, and the second reversing pipe 11 is connected to the second outlet 4. A reversing housing 12 is provided between 11. An impeller 14 is rotatably connected to the reversing housing 12 via a rotating shaft 13. The axes of the first reversing pipe 10 and the second reversing pipe 11 are both connected to and tangential to the reversing housing 12. The tee pipe 9 includes a main pipe, with an upper branch pipe 15 and a lower branch pipe 16 connected to the main pipe. A sealing plate 17 is hinged at the intersection of the upper branch pipe 15 and the lower branch pipe 16. The sealing plate 17 closes the lower branch pipe 16 under the action of gravity. An electromagnet 18 is fixed above the tee pipe 9. The electromagnet 18 can attract the sealing plate 17 to rotate and close the upper branch pipe 15. One end of the rotating shaft 13, located outside the reversing housing 12, is fixedly connected to the valve stem. The T-shaped ball 5 and its valve body 1 are existing technologies.

[0020] During use, the sealing plate 17 closes the lower branch pipe 16. At this time, the T-shaped ball 5 ensures that the inlet 2 is connected to the first outlet 3. When it is necessary to control the ball 5 to reverse, the electromagnet 18 attracts the sealing plate 17 to rotate upward, thereby causing the sealing plate 17 to open the lower branch pipe 16 and close the upper branch pipe 15. At this time, the fluid in the inlet 2 enters the second outlet 4 through the lower branch pipe 16 and the second reversing pipe 11 in sequence. Since there is no fluid in the second outlet 4, there will be a large pressure difference between the second outlet 4 and the inlet 2, allowing the fluid to pass through the reversing pipe at high speed. The impeller 14 inside the housing 12 rotates, driving the rotating shaft 13 and valve stem to rotate. This utilizes the pressure difference of the water flow to open the valve, significantly reducing the need for continuous power supply to the traditional electromagnet 18, greatly reducing energy consumption. Furthermore, using the fluid pressure difference as the driving force reduces wear and tear on mechanical parts and the risk of failure, improving valve stability and lifespan. Simultaneously, the electromagnet 18 only operates when necessary, reducing the possibility of overheating or damage due to prolonged operation. When the ball 5 rotates a certain angle, the fluid flow through it increases, correspondingly reducing the pressure difference. This reduces the thrust on the impeller 14 until the pressure difference decreases to the point where it can no longer drive the impeller 14 to rotate, reaching a balance. At this point, the valve switches. This adaptive mechanism achieves precise valve positioning and control without the need for a complex control system. When valve reset is required, the electromagnet 18 is disconnected, allowing the sealing plate 17 to close the lower branch pipe 16 under gravity. At this time, fluid flows sequentially along the upper branch pipe 15 and the first reversing pipe 10 into the first outlet 3. Simultaneously, the fluid drives the impeller 14 to rotate in the opposite direction, causing the ball valve to rotate and thus switching the valve position. The positions of the inlet 2, the first outlet 3, and the second outlet 4 can be adjusted to achieve the desired effect. Position adjustment allows the three-way ball valve to adapt to different installation environments and fluid control requirements, improving its versatility and flexibility.

[0021] like Figure 9-11As shown, the side wall of the rotating shaft 13 is screwed with a limiting plate 6 on the reversing housing 12, and a limiting rod 19 is fixed on the reversing housing 12. The limiting rod 19 passes through the limiting plate 6, and a limiting ring 20 is fixed at the top of the limiting rod 19. The rotating shaft 13 rotates within the limiting ring 20. During the rotation of the impeller 14 and the rotating shaft 13, the rotating shaft 13 drives the limiting plate 6 to move up and down along the limiting rod 19 via the thread. When the limiting plate 6 abuts against the limiting ring 20 or the reversing housing 12, the limiting plate 6 can prevent the rotating shaft 13 from rotating, thereby preventing the impeller 14 from rotating. The impeller 14 achieves the effect of sealing the reversing housing 12, ensuring that the rotating shaft 13 and the ball 5 connected to it can only rotate within a predetermined angle range. This precisely controls the position of the ball 5, avoiding inaccurate fluid control or valve damage caused by excessive rotation. Even under fluid pressure fluctuations or external interference, the limiting plate 6 can ensure that the rotating shaft 13 and the ball 5 remain in the correct position, improving the reliability and durability of the valve.

[0022] like Figure 9-13 As shown, a spur gear 21 is fixed to the top of the rotating shaft 13. A V-shaped reversing plate 22 is rotatably connected to the limiting ring 20 via the rotating shaft. Two mirror-image limiting teeth 23 are fixed to both ends of the reversing plate 22. The limiting teeth 23 have an inclined surface 25 on one side near the rotating shaft and a limiting surface 24 on the other side. The inclined surface 25 can be tangent to the spur gear 21, and the limiting surface 24 abuts against the teeth of the spur gear 21. Two parallel V-shaped limiting grooves 26 are opened at the end of the reversing plate 22 away from the opening. A support plate is provided on the limiting ring 20, and a spring telescopic shaft 27 is fixed to one end of the support plate. The telescopic end of the spring telescopic shaft 27 can be placed in the small end of the limiting groove 26. When the spring telescopic rod is placed in the limiting groove 26, one of the limiting teeth 23 is inserted into the spur gear 21. The reversing plate 22 is driven by the reversing device. The spring telescopic rod is prior art.

[0023] During use, the spring telescopic rod is placed in the limiting groove 26, and the limiting tooth 23 at one end of the reversing plate 22 is placed between the adjacent teeth of the spur gear 21. The limiting groove 26 restricts the rotation of the reversing plate 22, ensuring that the valve opens or closes in the predetermined direction. When the spur gear 21 needs to rotate, the spur gear 21 pushes the reversing plate 22 to compress the spring telescopic rod by abutting against the inclined surface 25. After the limiting tooth 23 passes through a tooth of the spur gear 21, the spring telescopic rod uses its own elastic recovery property to provide thrust to the reversing plate 22, causing the limiting tooth 23 to enter between the adjacent teeth of the next spur gear 21. When the rotating shaft 13 accidentally drives the spur gear 21 to reverse, the limiting surface 24 abuts against the teeth of the spur gear 21, preventing the valve from being incorrectly reversed due to fluid pressure fluctuations or external interference. When the electromagnet 18 drives the sealing plate 17 to flip, the rotating shaft 13 needs to rotate in the opposite direction. This is achieved by the reversing device driving the reversing plate 22 to rotate, allowing the spring telescopic shaft 27 to be placed in the adjacent limiting groove 26. At this time, another limiting tooth 23 of the reversing plate 22, pushed by the spring telescopic shaft 27, is positioned between adjacent teeth of the spur gear 21, ensuring that the spur gear 21 can only rotate in the opposite direction. The design of the reversing plate 22 and the limiting tooth 23 ensures that the spur gear 21, the connected rotating shaft 13, and the ball 5 can only rotate in a predetermined direction. When reverse rotation is required, the reversing device must drive the reversing plate 22 to rotate, placing the spring telescopic shaft 27 in the adjacent limiting groove 26 to achieve reverse rotation, thus improving the accuracy and safety of fluid control.

[0024] like Figure 9-13 As shown, a connecting plate 28 is fixed to the top of the rotating shaft. The reversing device includes a bracket, on which a reversing motor 29 is fixed. The output shaft of the reversing motor 29 is connected to a lever 30 via a connecting rod. The side wall of the lever 30 abuts against the connecting plate 28. The reversing motor 29 can be a stepper motor or servo motor, etc. When it is necessary to change the rotation direction of the impeller 14, the reversing motor 29 is started. The reversing motor 29 drives the connecting rod to rotate, and through the abutment of the lever 30 against the connecting plate 28, it drives the reversing plate 22 to rotate. The reversing motor 29 enables the impeller 14 to switch rotation direction accurately and quickly, improving the accuracy and response speed of fluid control.

[0025] like Figure 6As shown, a counterweight 31 is fixed to the end of the sealing plate 17 away from the hinge. The counterweight 31 is a permanent magnet that can be attracted by the electromagnet 18. The counterweight 31 facilitates the sealing plate 17 in closing the lower branch pipe 16, enhancing the valve's sealing performance, helping to prevent fluid leakage, and improving the efficiency and safety of the fluid control system. Since the counterweight 31 is a permanent magnet, there is a magnetic interaction between it and the electromagnet 18. When the electromagnet 18 is energized, it can more easily and quickly attract the sealing plate 17 to rotate, thereby opening the lower branch pipe 16 and closing the upper branch pipe 15. This improves the response speed and accuracy of valve reversal.

[0026] like Figure 2-7 As shown, the rotating shaft 13 is connected to the drive shaft 32 via a gear set. The bottom end of the drive shaft 32 passes through the drive chamber 7. A connecting nut 33 is rotatably connected to the end of the drive shaft 32 outside the drive chamber 7. The connecting nut 33 is rotatably connected to the top of the valve stem. The bottom end of the drive shaft 32 has a protrusion, and the valve stem has a groove 34 to accommodate the protrusion. The engagement of the protrusion and groove 34 effectively prevents relative rotation between the drive shaft 32 and the valve stem during operation, ensuring the accuracy and stability of valve opening and closing, and improving the precision of fluid control. The design of the connecting nut 33 allows for easy separation of the valve body 1 and the drive chamber 7. When the drive chamber 7 requires maintenance or repair, simply removing the connecting nut 33 separates the valve body 1 from the drive section, greatly simplifying the maintenance process and reducing maintenance costs. The introduction of the gear set increases the transmission torque, enabling the valve stem to effectively drive the ball 5 to rotate even under conditions of small water pressure differential.

[0027] like Figure 7 , 8 As shown, the ball 5 is rotatably connected to the valve body 1 via a sealing ring 35. The sealing ring 35 contains an elastic gasket 36, and a limiting pin 37 is located at the end of the sealing ring 35. The valve body 1 has a pin hole that mates with the limiting pin 37. The sealing ring 35 and the elastic gasket 36 are integrally formed, and their combined use provides double protection for the seal. The elastic gasket 36 provides continuous thrust to the sealing ring 35, ensuring that the sealing ring 35 fits tightly between the ball 5 and the valve body 1, thereby effectively preventing fluid leakage. The limiting pin 37, in conjunction with the pin hole, effectively restricts the rotation of the sealing ring 35. This design prevents the sealing ring 35 from accidentally falling off due to friction or fluid pressure during the rotation of the ball 5, thus ensuring the durability and stability of the seal.

[0028] like Figure 5As shown, a sealed chamber 38 is fixed inside the drive chamber 7, and the electromagnet 18 is disposed inside the sealed chamber 38. A drain valve 39 is provided at the bottom of the drive chamber 7. The drain valve 39 is existing technology. The sealed chamber 38 should be made of a magnetically conductive material. By setting up the sealed chamber 38, electrical short circuits, equipment damage, or electric shocks caused by accidental water leakage from pipelines such as the inlet pipe 8, the three-way pipe 9, the first reversing pipe 10, and the second reversing pipe 11 can be prevented, ensuring that the electromagnet 18 can work normally and that its performance will not be affected or safety hazards caused by water leakage. The drain valve 39 allows water accumulated in the sealed chamber 38 to be easily drained, avoiding damage to the drive chamber 7 caused by water accumulation.

[0029] The inlet pipe 8, the first reversing pipe 10, and the second reversing pipe 11, located outside the drive chamber 7, are made of transparent material. This transparency allows operators to directly observe the fluid flow, including flow rate, direction, and whether there are blockages or leaks. This helps in the timely detection and handling of potential fluid control problems, improving system reliability and safety. Furthermore, by observing the fluid flow within the pipes, it is possible to determine which part is malfunctioning, enabling rapid repair or replacement and reducing downtime and maintenance costs.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A quick-opening, energy-saving two-position three-way ball valve, comprising a three-way ball valve, the three-way ball valve including a valve body (1), characterized in that: The valve body (1) includes an inlet (2), a first outlet (3), and a second outlet (4). A T-shaped ball (5) rotates inside the valve body (1). A valve stem is fixed on the ball (5). The valve stem is driven by a drive device, which includes a drive chamber (7). An inlet pipe (8) passes through the drive chamber (7). The inlet pipe (8) is connected to a first reversing pipe (10) and a second reversing pipe (11) via a three-way pipe (9). The first reversing pipe (10) is connected to the first outlet (3), and the second reversing pipe (11) is connected to the second outlet (4). A reversing housing (12) is provided between the first reversing pipe (10) and the second reversing pipe (11). Inside the reversing housing (12) An impeller (14) is rotatably connected via a rotating shaft (13). The axes of the first reversing pipe (10) and the second reversing pipe (11) are both connected to and tangent to the reversing housing (12). The three-way pipe (9) includes a main pipe, on which an upper branch pipe (15) and a lower branch pipe (16) are connected. A sealing plate (17) is hinged at the intersection of the upper branch pipe (15) and the lower branch pipe (16). The sealing plate (17) closes the lower branch pipe (16) under the action of gravity. An electromagnet (18) is fixed above the three-way pipe (9). The electromagnet (18) can attract the sealing plate (17) to rotate and close the upper branch pipe (15). The end of the rotating shaft (13) located outside the reversing housing (12) is fixedly connected to the valve stem.

2. The energy-saving two-position three-way ball valve with quick opening as described in claim 1, characterized in that: The rotating shaft (13) is screwed to the side wall of the reversing housing (12) with a limiting plate (6). A limiting rod (19) is fixed on the reversing housing (12). The limiting rod (19) passes through the limiting plate (6). A limiting ring (20) is fixed at the top of the limiting rod (19). The rotating shaft (13) rotates within the limiting ring (20).

3. A quick-opening, energy-saving two-position three-way ball valve according to claim 2, characterized in that: A spur gear (21) is fixed to the top of the rotating shaft (13). A V-shaped reversing plate (22) is rotatably connected to the limiting ring (20) via the rotating shaft. Two mirror-image limiting teeth (23) are fixed to the two ends of the reversing plate (22). The limiting teeth (23) have an inclined surface (25) on one side near the rotating shaft and a limiting surface (24) on the other side. The inclined surface (25) can be tangent to the spur gear (21). The limiting surface (24) and the teeth of the spur gear (21) are intersected. The reversing plate (22) has two parallel V-shaped limiting grooves (26) at the end away from the opening. The limiting ring (20) is provided with a support plate. One end of the support plate is fixed with a spring telescopic shaft (27). The telescopic end of the spring telescopic shaft (27) can be placed in the small end of the limiting groove (26). When the spring telescopic rod is placed in the limiting groove (26), one of the limiting teeth (23) is inserted into the spur gear (21). The reversing plate (22) is driven by the reversing device.

4. The energy-saving two-position three-way ball valve with quick opening as described in claim 3, characterized in that: The top of the rotating shaft is fixed with a connecting plate (28). The reversing device includes a bracket, on which a reversing motor (29) is fixed. The output shaft of the reversing motor (29) is connected to a lever (30) via a connecting rod. The side wall of the lever (30) can abut against the connecting plate (28).

5. The energy-saving two-position three-way ball valve with quick opening as described in claim 1, characterized in that: The sealing plate (17) is fixed with a counterweight (31) at one end away from the hinge. The counterweight (31) is a permanent magnet that can be attracted by an electromagnet (18).

6. The energy-saving two-position three-way ball valve with quick opening as described in claim 1, characterized in that: The rotating shaft (13) is connected to the drive shaft (32) via a gear set. The bottom end of the drive shaft (32) passes through the drive chamber (7). The end of the drive shaft (32) outside the drive chamber (7) is rotatably connected to a connecting nut (33). The connecting nut (33) is rotatably connected to the top end of the valve stem. The bottom end of the drive shaft (32) is provided with a protrusion, and the valve stem is provided with a groove (34) to accommodate the protrusion.

7. The energy-saving two-position three-way ball valve with quick opening as described in claim 1, characterized in that: The ball (5) is sealed and rotatedly connected to the valve body (1) through a sealing ring (35). An elastic gasket (36) is provided inside the sealing ring (35). A limiting pin (37) is provided at the end of the sealing ring (35). A pin hole that cooperates with the limiting pin (37) is provided on the valve body (1).

8. The energy-saving two-position three-way ball valve with quick opening as described in claim 1, characterized in that: The drive chamber (7) is fixed with a sealed chamber (38), and the electromagnet (18) is located in the sealed chamber (38). The bottom of the drive chamber (7) is provided with a drain valve (39).

9. The energy-saving two-position three-way ball valve with quick opening as described in claim 1, characterized in that: The inlet pipe (8), the first reversing pipe (10), and the second reversing pipe (11) located outside the drive chamber (7) are made of transparent material.

Images